AirHint found the following cheapest return flights from Dublin (DUB) to San Juan (SJU) in March 2026 (see full year).

Return flights

02 Mar - 09 Mar	Aer Lingus
11 Mar - 25 Mar	Ryanair
01 Mar - 08 Mar	Aer Lingus
01 Mar - 09 Mar	Air France
07 Mar - 16 Mar	Ryanair
02 Mar - 06 Mar	Ryanair
02 Mar - 08 Mar	Delta
12 Mar - 17 Mar	Delta
13 Mar - 20 Mar	Ryanair
23 Mar - 05 Apr	Delta
21 Mar - 06 Apr	Ryanair
08 Mar - 15 Mar	Ryanair
28 Mar - 06 Apr	Ryanair
27 Mar - 10 Apr	Ryanair
27 Mar - 03 Apr	Aer Lingus
27 Mar - 11 Apr	Ryanair

Also check the deals for one-way flights from Dublin to San Juan in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Dublin to San Juan in March from $630

Return flights